It is possible that your PC could be infected. The file name VSSADDIN.DLL is used by both safe and unsafe programs.
You should urgently check your PC to make sure it is not infected. The free version of Webroot Cloud AntiVirus Beta will scan your PC in less than two minutes and check for millions of spyware and malware infections including VSSADDIN.DLL. Don't put your confidential data, or your identity at risk, check your PC now with Webroot Cloud AntiVirus Beta.

The unsafe files using this name are associated with the malware group:
The filename VSSADDIN.DLL was first seen on Apr 14 2009 in the following geographical regions of the Webroot community:
Files using the name VSSADDIN.DLL have been seen with the following file size:
The filename VSSADDIN.DLL refers to many versions of a dynamic link library.
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